Airborne bacteria 浮游菌 ; 空气中的细菌 ; 气载浮游细菌
airborne bacteria concentration 空气菌浓
level of airborne bacteria 空气细菌浓度
The concentration of airborne bacteria 空气细菌浓度
airborne aerobic bacteria 气载需氧菌
airborne gram-negative bacteria 气载革兰氏阴性菌
Birds in outside cages develop immunity to airborne bacteria.
养在户外笼子里的鸟对空气传播的病毒有免疫力。
Although the researchers are not sure how bacteria detect airborne ammonia, they have some hypotheses about why bacteria produce slime in response to volatile ammonia.
尽管研究人员并不确定细菌是如何识别出到空气中的氨，但他们已经有了某些假设关于细菌为何能产生粘液以回应挥发性的氨。
Noting this, the experimenters deduced that ammonia was the airborne molecule to which the bacteria were responding.
正是注意到这点，研究人员推测细菌可能是对氨这种气体分子产生了回应。
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